/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.lanplay.server;

import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.form.FormComponent;
import org.apache.wicket.markup.html.form.validation.EqualInputValidator;

public class ImplicationValidator extends EqualInputValidator
{

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	public ImplicationValidator(FormComponent<?> formComponent1,
			FormComponent<?> formComponent2) {
		super(formComponent1, formComponent2);
	}

	/**
	 * @see org.apache.wicket.markup.html.form.validation.IFormValidator#validate(org.apache.wicket.markup.html.form.Form)
	 */
	public void validate(Form<?> form)
	{
		// we have a choice to validate the type converted values or the raw
		// input values, we validate the raw input
		final FormComponent<?> formComponent1 = getDependentFormComponents()[0];
		final FormComponent<?> formComponent2 = getDependentFormComponents()[1];

		if (!(isBlank(formComponent1.getInput()) || !isBlank(formComponent2.getInput())))
		{
			error(formComponent2);
		}
	}
	
	private boolean isBlank(String a) {
		return a == null || a.trim().length() == 0;
	}
}